Quote Originally Posted by Vaughn View Post
I tell students that if one took all the shades of grey that are in the average scene and mixed them up like paint, the resulting shade of gray would be "middle gray" and have an 18% reflectance...and that is what our meters assume the scene to be.

Don't know if this is 100% true, but it seems to satisfy them...LOL!
Vaughn, That's funny I use the same analogy. I say, if you put all the tones in this room in a blender, you'd get middle gray.